Finding the Fourth Proportional to 27,381,357.12, 37,784,775.84 and 14,989,053.21
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Solution
The fourth proportional to 27,381,357.12, 37,784,775.84 and 14,989,053.21 is: 20,684,073.96
Step by Step Solution
- Step 1: Write the proportion equation
27,381,357.12 : 37,784,775.84 = 14,989,053.21 : x - Step 2: Convert to fraction form
27,381,357.12/37,784,775.84 = 14,989,053.21/x - Step 3: Cross multiply
27,381,357.12x = 37,784,775.84 × 14,989,053.21 - Step 4: Simplify right side
27,381,357.12x = 566,358,015,756,787.75 - Step 5: Solve for x
x = 566,358,015,756,787.75/27,381,357.12 - Step 6: Final answer
x = 20,684,073.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.